Huckleberrypie had the swell idea to see if next up we could manage to convert the Gangnam Style dance to other game characters! check this for animation files! http://www.youtube.com/watch?v=1ySwO8-_-3Y
Thats not a bad idea... I have no idea about skyrim animation files thou... if possible, it's easy to create new animation files in 3dsMax, but the exporting could become difficult...
The *.pmd files contain bones and provides your base pose. I could view the *.vmd animations with the MikuMikuDance v7.39 software. The 2.vmd file from that archive linked from youtube has messed up animation from frame 550-700.